Add propagation models
can be used in place of add.
A composite propagation model cannot contain more than one propagation model object of the same class.
A composite propagation model cannot contain more than one propagation model object which includes effects of free-space loss.
Specify the transmitter and the receiver sites.
tx = txsite("Name","Fenway Park", ... "Latitude",42.3467, ... "Longitude",-71.0972, ... "TransmitterFrequency",6e9); rx = rxsite("Name","Bunker Hill Monument", ... "Latitude",42.3763, ... "Longitude",-71.0611);
Calculate signal strength using default Longley-Rice model.
ss1 = sigstrength(rx,tx)
ss1 = -80.9353
Create composite propagation model with Longley-Rice and specific atmospheric propagation models.
pm = propagationModel("longley-rice") + ... propagationModel("gas") + propagationModel("rain");
Calculate signal strength using composite propagation model.
ss2 = sigstrength(rx,tx,pm)
ss2 = -81.2259
propmodel1— Propagation model
propmodel2— Propagation model
pmc— Composite propagation model
Composite propagation model, composite
The path loss computed by
pmc is the sum of path losses
a ray tracing model, then
pmc is also a ray tracing model
where path losses from rain, gas, or fog models in the composite are added
to the path loss computed for each propagation path.